10,000 Birds

JULY 18, 2012

Others, like the petrels and some of the auks, will lay a single egg per breeding attempt. The investment placed in each clutch bur seabirds is so great that only one breeding attempt can be seen to completion each year. They are cavity nesters, breeding in natural cavities or holes dug into the soil. So why do it?

Eggs 164

Eggs Puffins Breeding Raised 164

10,000 Birds

JUNE 7, 2012

A lovely looking and distinctive sounding bird (so they say, I sadly have not seen one…yet), the Kirtland’s Warbler can only be found during its breeding season in Jack Pine forests 5 to 20 years old in the northern Lower Peninsula of Michigan. Previously, even researchers had problems getting access to nesting Kirtland’s Warblers.

Michigan 227

Michigan Bahamas Endangered Species Research 227

10,000 Birds

JULY 26, 2012

But as I and others have said before, it does raise a very practical question about what field guides, which have for the most part been slavishly devoted to taxonomic order, are going to do. waters every year after breeding. The split is based on evidence of very limited gene flow between the populations despite geographic overlap.

Falcons 172

Falcons Parrots California Breeding 172

10,000 Birds

APRIL 15, 2015

They are large passerines and research has shown them to be an ancient basal offshoot from the passerine tree (at approximately the same time as rockjumpers, were even placed in the same family until quite recently). The timber industry-led assault on this resource is building towards ecological catastrophe.

Ghana 191

Ghana Hunters Guinea Gambia 191

10,000 Birds

MARCH 14, 2011

For my new book, due out in 2012 from Houghton Mifflin Harcourt, I’ve been researching sandhill crane hunting. Even more telling, the support the Tennessee Wildlife Resources Commission was expecting from its hunting community simply never materialized. Or These Blasts From The Past What’s In A Name?

2011 245

2011 Kentucky Tennessee Hunting 245

10,000 Birds

SEPTEMBER 10, 2014

Here’s a diagram, available on the Audubon site , that compares its 2000 range with its anticipated 2080 range: Only 1 percent of the bird’s breeding range remains stable between 2000 and 2080 if global warming continues on its current course. Are they adaptable and remarkably enduring and resourceful?

Species 175

Species Science Los Angeles 2000 175

10,000 Birds

MARCH 3, 2020

The source of this ranking, BirdLife International, lists Bolivia as currently having 1,439 bird species, including 18 breeding endemics. Like most maps, colors are used to indicate seasonal status (breeding resident, Austral migrant/visitor, Boreal migrant, etc.). Distribution maps are also different from other field guides.

Bolivia 172

Bolivia Birds Brazil Switzerland 172

10,000 Birds

JUNE 1, 2021

If you remember that the first edition of Sibley was published with “National Audubon Society” on the cover, raise your hand. I am particularly happy to see that the bird communication section includes recent research on singing female birds. I didn’t.). This is a fairly large book: 907 pages; 7.38

North America 279

North America America Birds California Condor 279

10,000 Birds

MAY 16, 2011

Mallards , of course, bring new meaning to the term dabbling duck , what with all those wild mallard hybrids and domestic cross-breeds running around. Researching this single hybrid revealed that teals are as liberal with their love as mallards! The more I learn about ducks, the more impressed I am with their blatant promiscuity.

Ducks 228

Ducks North America Denmark America 228

10,000 Birds

MAY 19, 2011

Way back when I started what turned out to be my thesis research (on humans), it became important for me to learn about bird migration. I was involved in the study of human movement and navigation on land, and there was a lot of research coming out about bird navigation. Another question this raises has to do with migration itself.

Research 191

Research Humane Compassion New York 191